wxFileName::Normalize(wxPATH_NORM_ENV_VARS) now works

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@24129 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/filename.cpp

@@ -848,6 +848,18 @@ bool wxFileName::Normalize(int flags,
                            const wxString& cwd,
                            wxPathFormat format)
 {
+    // deal with env vars renaming first as this may seriously change the path
+    if ( flags & wxPATH_NORM_ENV_VARS )
+    {
+        wxString pathOrig = GetFullPath(format);
+        wxString path = wxExpandEnvVars(pathOrig);
+        if ( path != pathOrig )
+        {
+            Assign(path);
+        }
+    }
+
+
     // the existing path components
     wxArrayString dirs = GetDirs();
 
@@ -940,11 +952,6 @@ bool wxFileName::Normalize(int flags,
             }
         }
 
-        if ( flags & wxPATH_NORM_ENV_VARS )
-        {
-            dir = wxExpandEnvVars(dir);
-        }
-
         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
         {
             dir.MakeLower();